Description
Bosch Engine Control Unit for first-generation Peugeot 107 and Citroën C1. For vehicles with an automated (robotic) gearbox, Euro 5.
Reliable Bosch ECU engineered for the 1.0i 1KR engine family used in first‑generation Peugeot 107 and Citroën C1 models. This unit manages fuel injection, ignition timing, idle control and emissions functions and is suitable for Euro 5 vehicles equipped with a robotic (automated manual) gearbox. Ideal for professional workshops and experienced DIY mechanics who need a direct-fit replacement or a unit to be cloned/coded to the vehicle. Commonly sought under OEM and Bosch part numbers, this ECU restores drivability, smooth idle and correct gearbox interaction when the original unit is faulty.
Technical Information
- Manufacturer: Bosch
- Model: Peugeot 107 (First Generation), Citroën C1 (First Generation)
- Product Codes: 0261S07617, 0261208702
- Other Numbers: 261208702, 89661-0H230, B000727680
Installation And Coding – Important
- Unit Is Used And Is “Paired” With The Original Vehicle (VIN/PIN/Keys).
- Options To Commission The Unit:
- Cloning Data From The Old Unit (EEPROM/Flash) – After Cloning The Unit Is Plug And Play.
- Virginization And Subsequent Initialization/Telecoding Via DiagBox (or Online) + Key Adaptation.
- Recommended To Be Performed By A Technician With PSA Service Equipment (DiagBox/Lexia/PP2000).
- Always Disconnect The Battery Before Removal/Installation And Follow Manufacturer Procedures To Avoid Damaging The Unit.
Installation Recommendation
Before starting, ensure you have the required tools and a means to perform ECU cloning or coding. General replacement steps:
- Disconnect The Negative Battery Terminal And Wait A Few Minutes To Remove Stored Power.
- Locate The ECU (location May Vary By Production Date; Refer To Vehicle Repair Manual). Protect Surroundings From Moisture And Dirt.
- Carefully Unplug Electrical Connectors, Release Any Retaining Clips And Remove Mounting Bolts.
- Install The Replacement Unit, Secure Mounting Bolts And Reconnect Connectors Firmly Without Bending Pins.
- Reconnect The Battery And Proceed With Cloning Or Coding According To The Chosen Method (See Above).
This procedure is suitable for experienced mechanics. If cloning/coding tools are not available, plan the commissioning step before fitting to avoid vehicle immobilization or drivability issues.
Why This Part Commonly Fails
- Connector Corrosion Or Water Ingress Causing Intermittent Signals Or Short Circuits.
- Electrical Damage From Voltage Spikes, Poor Battery/Alternator Health Or Jump‑Starting Errors.
- Thermal Stress And Solder Joint Fatigue Over Time Leading To Internal Component Failures.
- Software Corruption Or Memory Errors Requiring EEPROM/Flash Recovery Or Cloning.
For workshops and independent mechanics this Bosch ECU is a practical solution for restoring engine management on Euro 5 Peugeot 107 and Citroën C1 vehicles with robotic gearboxes. Ensure proper handling, secure connector mating and correct cloning/coding to achieve reliable operation.
